
\begin{table}
\begin{center}
\begin{tabular}{l c c}
\hline
 & Model 1 & Model 2 \\
\hline
Period     & $0.014^{*}$ & $0.011$     \\
           & $(0.005)$   & $(0.005)$   \\
Constant   & $0.781^{*}$ & $0.975^{*}$ \\
           & $(0.024)$   & $(0.013)$   \\
\hline
Adj. R$^2$ & $0.005$     & $0.306$     \\
Num. obs.  & $3855$      & $3855$      \\
N Clusters & $239$       & $239$       \\
\hline
\multicolumn{3}{l}{\scriptsize{$^{*}p<0.05$}}
\end{tabular}
\caption{Statistical models}
\label{table:coefficients}
\end{center}
\end{table}
